实现字符串加密

package my;
public class number {
    public static String EAndU(String value,char secret) {
        byte[] bt=value.getBytes();
        for (int i=0;i<bt.length;i++){
            bt[i]=(byte)(bt[i]^secret);
        }
        return new String(bt,0,bt.length);
    }
    public static void main(String[] args){
        String value="我喜欢你";
        char secret='祈';
        System.out.println("原来的字符串是：" + value);
        String encrypt=number.EAndU(value,secret);
        System.out.println("加密后的值是：" + encrypt);
        String uncrypt=number.EAndU(encrypt,secret);
        System.out.println("解密后的值是：" + uncrypt);
    }
}

效果如下：